Does anyone know where I can find replacement for this mini-blinds part?

[MissLaurus]

I am looking to replace the plastic valance carrier frames for my Levolor aluminum mini blinds. The old plastic frames have yellowed with age. Each frame holds one mini-blind slat, and clips on at the top of the blinds to form the valance. I cannot find this replacement anywhere on the Internet, including the Levolor website! The model of blinds is Levolor "Monoco" Custom, dating from the mid-1980's. Can anyone direct me to a source? Many thanks!

 

[Snoonyb]

Have you tried here; Contact Us - Customer Service | Levolor

 

[MissLaurus]

I will try that, thank you. (I looked at their site and didn't see the item, but didn't ask their customer service dept.) Thanks for the suggestion